High-stake car bunk



April l0, 1928.

F. W. CHRISWELL HIGH sTAKE CAR BUNK Filed Feb. 26, 1927 Patented Apr.10, 1928.

PATENT OFFICE.

FREDERICK vv. cnRIswELL, or `saarrmi, WnsHInGroN.

HIGH-STARE can iUivK.

Aiiplcatonled February 26, 1927. Serial No. 171,135.

My invention relates to improven'ients in high stake car bunks ol thelorm that are adapted 'lior fuse on logging c ars or logging `trucks andthe object ot my invention is to provide a high stake oar bunk in whichthe bottoms of the stakes are releasably supported by means that isadapted to be re leased or tripped from the side of the car opposite tothe one on which the stake is located. y

Another object is to provide etlicient and easily operated stake holdingmeans, said means including a slidably mounted stake pocket adapted tobe closed when it is drawn into thel end of the bunk to receive and holdthe bottom end oi ya stake and tol be opened by pressure against thestake when the pocket is moved outwardly in the bunk to release thebottom end of the stake.

Further objects are to provide a high stake car bunk of this nature thatis made up chiefly ol standard beams and sections.

l(Ether and more specific objects will be apparent from the followingdescription taken in connection with the accompanying drawings.

1n hauling logs, piling, poles, timbers and the like on flat cars ortrucks it becomes necessary to provide upright stakes at the sides ofthe cars to hold the load* The top ends o'ithe'se stakes are ordinarilysecured together by chains or cables and the bottom ends of the same aresecured to the cars. The present invention provides transverse bunks forcarrying the load and further provides releasable means at the ends ofthe bunks for the reception of the bottom ends of the stakes.

In the accompanying drawings Figure 1 is a plan view, with `parts brokenaway, of a high stake car bunk constructed. in accordance` with myinventiom the stakes being removed. H y

Fig. 2 is a side elevation of the same showing both the stakes in placebut showing the upper ends of said stakes broken away.

Fig. vis a view partly in side elevation and partly in sectionsubstantially on broken line SW3 of Fig. 1. l i y Fig. 4t is a crosssection on broken line 4-11 of Fig. 3. y

5 is a cross section on broken line 5-5 olfFig. 1,

Fig. .6 is a detached fragmentary isometric vie-woll a detail of theinvention.

Referring to the drawings, throughout which like reference.numeralsdesignate like parts l show a car stake bunk in which the supportingstructure comprises anA Lbeam 10 supported. in a normally horizontalplane by means including cross timbers .11, 12, 13 and 14. that supportthe medial part of the I-beam 10 and angle bars 15 .and channel shapedmembers 16' that support the respective ends of the I-beam 10. The crosstimbers 12 and 13 litinside of the side flanges ot the I-bea'm 10 andthe timbers 11 and 14 lare disposed on` the outer sides of the timbers12 and 18 respectively and are rigidly secured thereto by bolts 17 so asto :term` a broad and substantial base or support for the medialport-ion of said I-beam as shown in Figs. 1 and 5. ,y

The .angle bars 15 are disposed on the outer sides ot .the I-beam 10 andhave their horizontal flanges directed .outwardly to form base supportsot' equal. width 'with' the timbers 11 and 14. Braces 15 are Lprovidedat the outer ends oly angle bars 15. The channel. shaped members 16 aredisposed inside offthe angle bars 15 and have their 'upright flangesinclined inwardly at the top edge as at 187 and formed, as shown in Fig.it,` so as to receive the side flanges of the I-beam 10. Rivets 19secure the channel shaped .members 165 I-beam l10v and angle bars 15together. The channel shaped members 16 are provided toward their innerends with shelf 'like portions 20, Fig. 6, which are slotted as at 21for the reception kof operating Vbars 22 and 23, said shelf likeportions allording shoulders 24. againstwhich integral. blocks 25 on theoperating bars are in locked position and said shelf like portionsfurther having stop lugsQG, Fig. 1 at their inner ends arranged to beengaged by the blocks 25 to limit the endwi'se .movement of theoperating bars -when they are in releasing position.

The bunk 1s adapted to rest upon and be secured to' a car or truck bed27 as shown by broken lines in Fig. 2. The ends of the angle bars 15'may 'overhang kor project beyond the sides of the car and said .endsvhave plates 28 extendingacross the bottoms thereot and rigidly securedtheret'o5 the plates 28 serving as transverse tie members between thetwo angle bars at each end et the bunk and also serving as supports onwhich upright stakes 30 and stake holding devices may rest.

r1`he stake holding devices consist of stake pockets 31 each having anopening` 32 ot rectangular shape closed on three sides by integral wallsand provided at its outer open end with Lshaped stake holdingdogs 33that are pivotally secured to the stake pockets 31 by pivot pins 34. Thestake pockets 31 rest on the plates 23 and are slidable within theyrectangular receptacles formed jointly by the plates 28 and attachedangle bars 15. One o' the stake pockets may be provided at. each end ofthe bunk. `iVhen a stake pocket is drawn into the end of the bunk shownat the lett end, Figs. 1 and 3. the L-shaped dogs will be forcedinwardly by the bars 15 so as to cooperate with the stake pocket in'forming a rectanzguiar receptacle for holding the bottom end of astake. lVhen a stake pocket 31 is moved outwardly as shown at the rightin Figs. 1 and 3 then the L-shaped dogs 33 are clear of the angle bars15 and are free to swing sidewise, as shown, so as to release the bot--tom end of the stake.

The stake pockets 31 at each end are provided on their inner or rearsides with lugs 35 to which the ends of the respective op* cratino; bars22 and 23 are secured as by pivot pins 36. Each operating bar 22 and 23extends longitudinally within the bunk across the car so that thelocking end ot each operating` bar will be on the opposite side of thecar Jfrom the stake pocket which said bar controls or operates. Thismakes it possible for a person to stand on one side of a car and releasethe stake or stakes 30 on the opposite side of the car.

The locking end of each opera-ting bar 22 and 23 is provided with anintegral block 25 affording shoulders that are adapted to lock againstthe shoulders 24 of the channel members 16. The locking ends of theoperating bars 22 and 23 are adapted to drop into the slots 21 in theshelf portions 2O when the stake pockets 31 are in the holding position.see right end Fig. 3, and to be raised out of said slots 21 when thestake pockets are in the releasing' position, see lett end Figs. 1

and 3. ln the released position the blocks 25 on the opera ting bars 22and 23 engage with the stop lugs 2G thereby limiting the movement ofsaid operatingr bars and the attached stake pockets.

Integral guide portions 391 are provided below the blocks 25, said guideportions always remaining within the slots 21 and preventing sidewisedisplacement of the ends ot the bars when said bars are in the releasedposition.

lnclined guides e0 on the channel members ,eeaeae 16 serve to deflectthe locking ends et the operating bars forward when they are moved tromlocked to released position thus preventingv said barsv from locking inthe slots 21 when said bars are released. The bars are held in thelocked position by locking` dogs 11 that are secured to pivots 412 whichare journaled in the bunk frame. External to the bunk frame, the pivots12 have combined weight arms and releasing levers 43 Secured thereto,the weight arms 42) normally serve to hold the locking' dogs l11 in theengaged position but may be moved by an operator to release thelockingdogs.

The operating bars 22 and 23 are released from the locked position byreleasing` levers llllot substantially l. shape each having one portionextending along the side of the bunk and the other portion extendingrCrosswise through the bunk and supported for oscillation therein, saidlast named portions eX- tending under the ends of the operating` bars 21and 22 and having;v crank elements 45 that engage with the portions 39of the locking ends of said operating bars to li `ft and release thesame when the outer ends of the releasing levers are raised.

rl`he stake pockets 31 have top and bot-tom portions 50 above and belowthe lugs 35. The top portions 50 are slidable underneath the edges 51 ofthe top I-beam and the bottom portions are slidable on the bottoms 52oit the member 16. An opening 53 is provided in the bottom of eachmember 16 through which dirt and refuse may discharge.

The operation of this high stake bunk is Cil as follows: The bunk isinstalled on a car or truck as shown in Fig. 2. The stake pockets 31 aredrawn or pushed inwardly as shown at the left in Figs. 1 and 3 and arelocked in this retracted position by the locking` moans at the oppositeends or the operating levers. The bot-tom ends oiE the stakes 30 areplaced in the stake pockets.y the load being placed on the bunks betweenthe stakes. The top portions of the two stakes at opposite ends of thebunk are secured together by a chain or cable, not shown, which passesover the load. The stakes thus serve to hold the load on the bunk. Whenthe car is to be unloaded thc bottom of the stake at one end ci thc bunkis released by a person at the other end oit the bunk by iirst `graspingand turning' the weight arm 4:3 to thereby disengage the locking dog'41. then lifting' the end ot the releasinglever 44 to disengage theblock 37 ot the operating bar 22 or 23 from the shoulders 2li thuspermitting the stake pocket 31 that is connected with said operating barto move outwardly and allo'wf ing the L-shaped dogs 33 to assume the position shown at the right in Figs. 1 and 3 and release the stake. Thestake pockets may be pushed back into the bunks from nece,

the releasing to the holding position preparatory to, or in theoperation of inserting and setting up the stakes, the end of theoperating bar remote from the stake pocket to which it is securedautomatically dropping into locked position.

This bunk is strong and simple in construction and etlicient inoperation; the stake pockets are relatively deep so that the stakes willnot be accidentally disengaged therefrom; the locking means is positiveand can not accidentally release, and the stakes are arranged to betripped from the opposite side of the car thereby eliminating the dangerof the operator being injured by the discharging load when he releasesthe stakes.

It will be obvious that a shortl or long stake may be used as desiredand that a bunk may be made having a stake pocket on one side of the caronly without depart-ing from the spirit of my invention.

The foregoing description and accompanying drawings clearly disclose apreferred embodiment of the invention but it will be understood thatthis disclosure is merely illustrative and that such changes may beresorted to as are fairly within the scope and spirit of the followingclaims.

That I claim is l. In a high stake bunk of the class described, a bunk,two stake supports slidable longitudinally within the respective ends ofsaid bunk frame, an operating bar connected with each of the respectivestake supports and extending to the opposite end of the bunk, and meansat said opposite end of said bunk for locking each of said operatingbars.

2. In a high stake bunk of the class described, a bunk frame, two stakesupports slidable longitudinally within the respective ends of said bunkframe, an operating bar connected with each of the respective stakesupports and extendingr to the opposite end of the bunk, means at saidopposite end of said bunk for locking each of said operating bars anddevices for releasing said bars from lbocked position.

3. In a bunk of the class described, a bunk frame having a receptacle ateach end, and a stake receiving pocket slidablc in each of saidreceptacles and arranged to hold a stake when it is drawn into thereceptacle and to release a stake when it is allowed to project out ofsaid receptacle.

d. In a bunk of the class described, a bunk frame having a receptacle ateach end, a stake receiving pocket slidable in each of said receptacles,and movable means forming one side of said stake receiving pocket, saidmovable means being supported in a closed position for holding a stakewhen. said Astake receiving pocket is drawn into its receptacle andbeing permitted to open to release a stake when said stake receivingpocket is allowed to project out of said rcceptacle.

5. The apparatus as described in claim i in which means are provided forholding said stake receiving pocketwithin said receptacle.

6. In a bunk of the class described, a bunk frame having a receptacle atthe end, a stake receiving pocket movable within said receptaclelengthwise of said bunk frame .said stake receiving pocket being open atthe outer end and stake holding dogs pivotally secured to said outerend, said stake holding dogs being arranged to be swung inwardly to forma closure for the open end of said stake pocket when said stake pocketis within its receptacle and being free to swing outwardly to release astake when said stake pocket is permitted to move outwardly in itsreceptacle.

7. The apparatus as described in claim 6 in which the stake receivingpocket affords three sides of a rectangular recess and the fourth sideof said recess is formed by L- shaped stake holding dogs pivotallysecured to said stake receiving pocket.

8. The apparatus as described in claim 6 in which the stake receivingpocket is movable between two rigid side walls and the end of said stakereceiving pocket is adapted to project beyond said side walls when thestake receiving pocket is in released position, said stake holding dogsbeing moved inwardly and held inwardly by said rigid side walls when thestake receiving pocket is moved between the side walls.

9. The apparatus as described in claim 6 in which the stake receivingpocket is held inwardly by an operating bar releasable from the oppositeend of the bunk.

10. In a bunk of the class described an I- beam arranged with its webportion in a normally horizontal plane, angle bars secured to the outersides of said I-beain adjacent the respective ends of the saine saidangle bars forming base supports for the ends of the I-beain, the lowerflanges of said angle bars being turned outwardly, and timberssupporting` said I-beam between said angle bars.

1l. In a bunk of the class described, a bunk frame embodying a normallyhorizontal I-beam, angle bars secured to the sides of said I-beam andprojecting beyond the end thereof, a cross plate secured to the bottomsof said angle bars at their outer ends and a stake pocket resting onsaid cross plate and slidable longitudinally of the bunk between the twoangle bars at opposite sides of the end of the bunk.

12. In a bunk of the class described, a bunk frame embodying a normallyhorizontal I-beam, angle bars secured to each side of said I-beam nearthe ends thereof and forming a base for supporting the I-beam,

and channel shaped members disposed between said angle bars and securedthereto, the upper edges of said channel shaped members being inclinedinwardly and formed to receive the side ianges of said I-beam.

13. The apparatus as described in claim 12 in which the angle barsproject beyond the ends of the I-beam and have plates secured to thebottoms thereof, said .angle bars and plates 'forming receptacles forstake holding means.

111. 1n a bunk of the class described, a bunk iframe, stake holdingmeans movable in the ends of said bunk frame, operating bars connectedwith said stake holding means and extending across said bunk frame,channel shaped members in the ends ot' said bunk frame, said channelshaped members having shelf like `portions that are slotted :tor thereception of the ends of said operating bars, means on said operatingbars for effecting a locking engagement with said channel shaped membersand devices for releasing said bars from locked position.

15. The apparatus as described in claim 14: in which gravity operatedreleasable latch means are provided for holding said operating bars inlocked position.

16. The apparatus as described in claim 14; in which inclined deflectormeans are prol vided in said channel shaped members for guiding the endso'l' said operating bars upwardly away from said slots as said operatingbars are moved into an unlocked position.

In Witness whereof, I hereunto subscribe my name this 10th day ofFebruary, A. D. 1927.

FREDERICK W. CHRISVVELL.

